Bicycle-lock



(No Model.)

A. KELLEY.

BICYCLE LOOK. No, 538,170. PatentedApr.- 23, 1895 UNITED STATES PATENT OFFICE.

ALBERT KELLEY, on BOSTON, MASSCHUSETTS.

BlCYCLE-LOCK.

SPECIFICATIN forming part Of Letters Patent NO. 538,170, dated April 23, 1895.-

Appliostion filed J uly 23,1 894. Serial No. 518,303. (No modal.)

T aZZ whom it may concern:

Be it known that I, ALBERT KELLEY, of Boston, in the county of Sufifolk and State of Massachusetts, have invented a new and useful Improvement in Bicycle-Looks, which Will, in conneotion with the acoompanying drawings, ne hereinafter fully described, and speoifioally defined in the appended claims.

Figure lis a front elevation of m y improved look with the face plate removed to show its interior construction, the solid limes showing the looking arms closed together as when locked, and the broken lines as unlooked and open. Fig. 2 is a rear elevation of the look showing across the baok thereof the olamping piece or clasp by which it is attached to the frame of the bicycle. Fig. 3 is an edge view of the look in the direction of the arrow in Fig. 1. Fig. 4 represents a perspective of the face plate removed from Fig. 1, and a view of the key to the look. Fig. 5 is an illustrative view of 3. portion of abioycle wheel and frame,

and showing the look as attaohed thereto.

My look consists of a case A to which are pivoted two levers B and B by a pivotal sorew stud C. The curved arms D and D of the levers B and B when in practioal use embrace the pneumatic tire or rim of the wheel as illus trated in Fig. 5, and the outer ends of these arms, being formed and arranged to interlook With eaoh other as shown in Fig. 3, when se attached to the bicycle and locked to the wheel ernbrace one of the wire spokes of the wheel, the spoke being held in the small round aperture E, thus preventing the wheel from being turned. The inoased arms F and F of levers B and B are notohed at their upper ends and when thrown apart by the locking together of the ends of arms D and D they rest against corresponding stops G and G which are riveted to the case. Arm F has formed thereon a branch F which entends toward arm F. Arm F oarries a pivoted branch F which extends toward branch F and the two branches are notohed or formed With shoulders at their inner ends and interlook With eaoh other, as shown by dotted lines in Fig. 1, when the arms D and D are locked together at E, as clearly shown in Fig. 3. The pivoted branch F is pressed downward, t0 interlook its free end With branch F by means of a spring H which is ooiled about a sorew that secures it to the upper end of arm F, as shown, and has one end bearing down upon the baok cf branch F While the other end bears up under a stud H secnred to the case. A spiral spring I is stretched aoross from a hook in the upper end of arm F to a hook in the upper end of arm F and serves to draw the two arms toward each other and to force apart the arms D and D.when the ends cf branches F and F are unlooked. A key plate J of irregnlar outlines is attached to the pivoted branch F and overlaps the end of branch F and extends below the two, as shown.

As represented in unbroken lines in Fig. 1, the parts are locked as when securing the wheel from turning. To unlock them a key is inserted through the keyhole in plate A, the hollow shank of the key fitting onto a stud K projeoting froni a boss K in the case, in the usnal way, while its bit is adapted to be tnrned past a ward K up against the under side or edge of plate J and to thereoy raise the plate against the force of spring H and With it the (end of branch F to which it is attached, thus releasing said branch from the end .of branch F when the contraotile force of spring I Will draw the arms F and F toward eaoh other and force apart arms D and D and release the wheel from the look. Thon thearms F and F are thus drawninward the branch F passes over branch F as indioated by the broken lines in Fig. 1. T0 look the wheel again it is only neoessary to clasp arms D and D With the hand and press them together against the force of springl until the parts are in position to allow spring H to operate t0 throw down branch F again and th us automatioally interlock its end with the end of branch F as before. In this manner the wheel is instantly and seourely locked by a more pressure of the hand, but the use of a key is required to release it. When unloeked by the use of the key the arms D and D are automatically thrown open, or apart, by the force of spring I, and romain free from contact or interterenoe With the wheel until prssed together as beftore stated; and in this position the look Will be oonvenientlyoarried when attached to the frame of the bicycle as illustrated in Fig. 5, and as Will now be explained.

To attach the look to the frame of the bicycle a clamping piece 01' clasp L having ourved ends M, l\[, as shown in Fig. 3, is attached to the back of the look case by means of light bolts N, N, and nuls I, P, the bolts passing throngh the case A and clasp L, and being adjustably secured by the nnts P to the branches et the bicycle frame which pass between the cnrved ends M of the clasp andthe back of case A, and are clamped tightly therein by turning the nuts. Thns the look is secnrely attached to the bicycle, and, being light and not in the way of the rider, or in any manne1 inconvenient, may be used as a permanent attachment to the wheel. \Vhen nnlocked there is perfectly free play of the tire of the wheel between arms D and D.

Vhen plate A is in place it forms part of the look case and is secnred to the stops G and G by screws R, R, 01 in any other snitable manner, and by the pivot-al screw 0 which holds the plate at that point on to a bea1ing pin K which pr0jects from boss K and prevents undne pressure of the plate npon the locking levers B and B and eonsequent interference With their free movement.

It is deemed preferable but not absolntely essential that a spoke of the wheel shonld be held between the ends of the locking levers D and D at E, as the encircling of the rim between the spokcs Will securely look the wheel from turning, except to a slight extenb, and embracing the spoke only makcs the looking a little more positive and rigid.

It is obvions chat modifications in th details of construction may be made without de parting from the essential feapures cf myinvention, which consists mainly in the constrnction whereby the look is adapted to be secrely clasped to the frame of the bicycle and is provided with locking arms which encircle the rim of the wheel, thns locking the wheel to the frame; and such locking of the amas being effected by inclosed mechansm Which is partially antomatic in its operaton.

I claim l. A bicycle look consisting of a case A; suitable attachments to the case by which t0 secnre it to the bicycle frame; levers B and B pivoted within the case and provided with projectng arms D and D formcd t0 encircle the rim of the wheel, and with interlocking branches F and F au actuating spring Il operating to look the branches; and an actuating spring I opcrating t0 release the whecl from arms D when the branches are nnlockcd; all snbstantially as and for the pnrposcs specified.

2. A bicycle look consisting of a case A; a clasp L attached to said case; levers B and B pivotcd to the case, lever B having a projecting cnrved arm D, and being provided with a pivoted branch F and lever B having a corresponding curved arm D and 1igd branch F the branches bcing constrncted and arranged to interlock as described, and adapted to be releascd from each othor by means of a key; a spring Il arranged to act on branch F and a spring I connecting arms F and F cf levers B and B, and opcrating to draw said a1ms together and to spread arms D and D, all snbstantially as and forthe pnrposes specified.

ALBERI KELLEY.

Witncsses:

EUGENE HUMPHREY, JOHN Q. ADAMS. 

